Computing-machine.



J. DALY.

COMPUTING MACHINE. nrmouxon r11.nn m3.s, 1909.

Patented July 19, 1910.

ml namus rrrlns co WASHINGTON, n. c.

J. M. DALY.

COMPUTING MAUHINB.

APPLIOATIOK'FILED nuns, 1909.

Patented July 19, 1910.

TN! "cams r-n'ras co., WASHINGTON, nv c.

J. M. DALY. COMPUTING MAUHINE.

APPLIOLTION TILED HA3. 5, IQQD.

Patented July 19,1910.

' I fi l ai Ill/ll & H NIllllllllllllllllllimlmn m v f M J. M. D ALY.COMPUTING MACHINE. APPLIGATION rum) MAR. 5. 1909.

Patentd July 19,1910.

' 2a a w W ll H J. M. DALY. COMPUTING MAOHINB. A-PPLIOLTIOK TILED MAB.5, 1909.

i lg 19, 1 91 91 9 anus-5mm a.

1 z NaRRls Pnnu co., WASHINOTON, n. c.

J. M. DALY. commune MACHINE.

- APPLICAT ON FILED MAR; 5, 1 909. Patentednnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn c.

UNITED STATES PATENT OFFICE.

JOHN M. DALY, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF 'IO CHRISTOPHERI1. DALY, OF PEORIA, ILLINOIS,

COMPUTING-MACHINE.

To all whom it may concern:

Be it known that I, JOHN M. DALY, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Computing-Machines; andI do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

This invention has reference to a computing machine and relatesparticularly to device are in most respects similar to those measuringthe resistance of railway trains.

The results to be obtained by the present device are in most respectssimilar to those obtained by machines upon which patents have alreadybeen granted to me, and by others upon which applications for patent arenow pending. The patents referred to are numbered 715,197; 715,199 and715,201, dated respectively December 2, 1902. The applications forpatent to which reference has been made were filed April 11, 1904,Serial No. 202,552 and 202,558; January 4, 1906, Serial No. 294,662;January 30, 1907, Serial No. 354,908 and April 10, 1907, Serial No.367,449.

One of the objects of the present invention is to improve generally thestructure disclosed and claimed in the application filed January 4,1904, bearing Serial N 0. 294,664; to improve and enlarge upon the scopeof the invention described and claimed in the application filed April10, 1907, bearing Serial No. 367,449, which has reference to the use ofinterchangeable rings containing different tonnage scales, and also toimprove the structure of the mechanical devices for returning theregistering wheels, numbering wheels or other similar computing partsthereof, to zero, of the application filed January 30, 1907, hearingSerial No. 354,908.

For a further and full description of the invention herein and themerits thereof and also to acquire a knowledge'of the details ofconstruction of the means for effecting the result, reference is had tothe following description and drawings hereto attached.

Specification of Letters Patent.

Application filed March 5, 1909.

Patented July 19, 1910. Serial No. 481,511.

modification, still the preferred embodiment of the invention isillustrated in the accompanying drawings, in which Figure 1 is a topplan View of my improved machine, with the center plate and scale ringbroken away to show the means for holding the scale ring in place, alsoto show the operating lever for actuating the tallying wheels; Fig. 2 isa top plan view of the operating mechanism, as it appears when thecovering or casing therefor has been removed; the removal of saidcasing, removing the center plate, scale ring and register operatingplate; Fig. 3 is a side elevation of Fig. 2, looking at the left handside of Fig. 2, with the inclosing case, which is omitted in Fig. 2,shown in dotted lines; Fig. 4 is a bottom plan view of the covering orcasing of the machine, showing the means for securing the center andregister oper ating plates in place; also showing in plan the springwhich cooperates with pin for locking scale ring in position; alsoshowing plan of pawl for locking the operating plate against prematuremovement; Fig. 5 is a cross section on the line 55 of Fig. 4; Fig. 6 isan enlarged plan view, showing in detail the devices for returning thenumbering wheels of the register and car tallying mechanism, to zero;said wheels being shown in dotted lines; Fig. 7 is a vertical sectiontaken on the line 7-7 of Fig. 6; Fig. 8 is a perspective view ofmechanism which operates to lock numbering wheels when they are returnedto zero; Fig. 9 is a perspective view of a locking lever which operatesto hold the pinions of the register numbering wheels, supported in aprojected position, and during the return of the numbering wheels tozero; Fig. 10 is a detail perspective view of a-support on which ismounted one of the levers shown in detail in Fig. 8, and is shown havingattached thereto a retarding lever which coiiperates with the tallyingwheel; Fig. 11 is an enlarged front elevation of the operating mechanismseen in Fig. 2, the bell omitted; Fig. 12 is a vertical cross section asthe same would appear if taken on the line 1212 of Fig. 1, with parts ofsaid Fig. 1 omitted;

lVhile the essential and characteristic feal Fig. 13 is an elevation ofparts as the same tures of the invention are susceptible of; wouldappear on line 13 13 of Fig. 2,

which shows the support for the pinions which transmit motion betweenadjacent numbering wheels and also showing a spring lock. engagingcertain of said pinions; Fig. 14: is an enlarged sectional. elevation asthe same would appear if taken on the line 14----14l-. of Fig. (3,showing the numbering wheels in full lines and the position of saidnumbering wheels when registering, certain of the parts on Fig. (3(nnittcd; Fig 15 is a view sin'iilar to Fig. 4', except that the pinionscooperating with the numbering wheels have been shifted to show theirposition when the numbering wheels are being returned to zero; Fig. 16is an enlarged partial longitudinal sectional view on the line l-10,Fig. 2; Fig. 17 is an cnlz'ir 'ed longitudinal sectional view on theline 1'l17 of Fig. 2; Fig. 18 is an ei'ilarged scctioi'ial view inperspective, showing the interior of the numbering wheels, which appearin section in Figs. 16 and 17; Fig. 19 is a perspective view of any oneof the pinions which mesh with the numbering wheels; Fig. 20 is anenlarged sectional detail of parts seen in Fig. Fig. 21 is a detailperspective view showing the lock for the operating ring and the mannerof producing a ratchet engagement of the lock with the ring; Fig. 22 isa view similar to Fig. 1'7, except that the lock is released from thering; Fig. 28 is a detail of a portion of a scale ring, such as seen inFigs. 1, 25, 26 and 27, looking at the bottom side to show one of thelocking lugs thereon; Fig. 2% is a detail of a portion of a scale ring,such as seen in Fig. 28, looking at the botom side to show one of thelocking lugs thereon; Fig. 25 is a face view of a scale ring and scale,the latter based on a one thousand (1000) ton rating; Fig. 26 is a faceview of a scale ringand scale, the latter based on a two thousand (2000)ton rating; Fig. 27 is a face view of a scale ring and scale, the latterbased on a three thousand (3000) ton rating; Fig. 28 is a face view orplan of a modified scale ring and scale, the same shown associated withmechanism adapting the ring to be adjusted, whereby the scales may beemployed to arbitrarily denote the allowance of a given number of tonsper car; Fig. 29 is a perspective view of a stylus, such as employed foractuating the operating ring, and Fig. 30 is a perspective view of ahinged lever, which, when actuated, will operate the car numberingmechanism.

Like numerals of reference indicate corresponding parts throughout thefigures.

The frame or casing of the machine com- 1 prises a base plate 1 withears 2 pro ecting from the corners thereof to provide a means forsecurely fastening the machine to a suit able'support if it'be deemedadvisable and on said base are mmlnted, in a secure manner, the tonnageregistering and car tallying mechanism, as well as certain other component parts of such n'ieehanisin, as will more fully appear.

The top or covering for the machine consists of the box like casing 3provided with a plurality of standards 1 having the reduced threadedends 5, which, when the easing is in position on the base plate 1 passesthrough openings (3 in the base plate and nuts (not shown) are screwedon to the threaded ends of said standards, which serve to secure theparts and inclose the operative parts within said casing.

The top of the casing 3 is cut out, as at 7, to form an annular openingin which are retained the fixed center plate 8 and the revolubleoperating plate 0. To secure the center plate 8, I provide said platewith a plurality of depending studs to which are secured bars 11, andsaid bars at their outer ends are secured to a ring like plate 12fastened to the lower face of the top of the casing, see Figs. 1 and 20.The inner face of plate 12 is preferably in the same vertical plane withthe wall 7 of the annular opening in said casing, and the wall 7 of thetop of the casing and the inner face of plate 12 are oppositely beveled,as indicated at 13 and 14, see Fig. 20, together, serving as a bearingfor rolls or balls which are inter posed between said bearing and abeveled face 16 of the o crating olate 9. The plate 9 has the inwar lyprojecting flange portion 17 lying beneath and in juxtaposition to thelower face of center plate 8, and is also provided with the upwardlyextending ring like portion 18 and the depending flange portion 19, saidflange portion 19 provided with the teeth forming a gear adapted-to intermesh with and communicate motion to gearing to be described. The ringlike portion 18 of the plate 9, is provided with a plurality of annularrows, preferably" two, of perforations 21 and 22 which extend throughthe body of the plate, see Figs. 1, 5 and 20 into any one of which maybe inserted the end of the stylus A, shown in Fig. 29, for rotating saidplate. The per forations 21 and 22 have a staggered relation, oralternately disposed, relative to each other, as will be clearly seenfrom an examination of Figs. 1 and 28. The staggered arrangement of therows of perforations 21 and 22, will be further explained in connectionwith scale rings, which will now be described, in connection with themeans on the casing for holding said rings on the casing.

The top of the casing 3 is provided with an annular flange 23 and ashoulder or ledge 24. The distance from the upper face of the ledge 24-to the top of the flange 23, preferably conforms to the thickness of thescale-rings, to be described, which rest upon and are secured to saidledge, which will bring the top face of the scale rings in the sameplane with the top face of the center plate 8 and top face of flange 23,see Fig. 20. Projecting inwardly from the shoulder or ledge 24. are aplurality of lugs 25, although only one is shown upon any of the severalviews and the lower face of said lugs 25 are spaced above the top faceof the casing, see Fig. 20, which allows for cooperating lugs 26 on thescale rings to ride beneath. said lugs 25 to retain the scale rings inposition on the casing. In Fig. 25 is shown a scale ring 27 containing ascale 28 based on a one thousand (1000) ton rating, and the lugs 26thereon are shown in dotted lines. In Figs. 1 and 26 are shown. scalerings 27 containing a scale 29 based on a two thousand (2000) tenrating. The lugs 26 are shown in dotted lines on the ring in Fig. 26,but are omitted in Fig. 1, although the scale ring in Fig. 1, is brokenaway to disclose one of the lugs 25 of the casing, in plan. In Fig. 27is shown a scale ring 27 containing a scale 80 based on a three thousand(3000) ton rating, and the lugs 26 thereon are shown in dotted lines.The lugs 26 on the rings, may be best seen in the de tail view in Fig.23, where the lug is shown as a flat plate attached to and spaced fromthe ring, so that when the ring is placed on the casing, it may berotated, causing the lugs 26 of said ring to ride beneath the lugs 25 onthecasing, bringing the lugs 25 between the lugs 26 and the lower faceof the ring and serving to retain the ring in operative position. As anadditional securing means for the rings 27 on the casing and to preventthe same from becoming dislodged, which might very easily be done,through the constant use of the machine, I provide each ring 27 with aperforation 31, properly located in the various interchangeable rings,and into such perforations will enter a pin 32 which is yieldingly heldprojected upwardly by the spring member 33, see Figs. 4 and 5. When aring 27 is placed on the casing, as the lugs 25 of the casing and 26 ofthe ring coincide to lock the ring in place, the pin 32, which has beendepressed, through the engagement of the ring, will, as it coincideswith the perforation 31 in said ring, be forced into the same by theaction of the spring member 33. To release the ring from the casing, thestylusA is used to depress the pin 32 and upon the pin being depressedsufiiciently to release the ring therefrom, the ring may be partiallyrotated by pressure of the end of the stylus against the wall of theperforation 31, moving the ring until the lugs 26 are free of the lugs25, when the pressure exerted by the spring member 33 on the pin 32 willlift the plate so that an operator may remove the same and substituteothers, if desired.

In Fig. 1, a machine is shown with all the parts assembled and in normalposition and with a ring 27 containing a scale 29 based on two thousand(2000) tons, in place, encircling the operating plate 9 and the annularrows of perforations 21 and 22 therein. A similar ring 27 and scale 29is shown on a much larger scale in Fig. 26. The rings 27 in Figs. 25 and27 are in all respects similar to those in Figs. 1 and 26, except, thedifference in the scales, which as shown are based respectively, on onethousand and three thousand tons. The scales on the several rings,although based on a different tonnage rating are made up ofcorrespondingly similar characters, symbols or numerals and linesarranged radially on the face of said rings which lead to or coincidewith the several characters, symbols or numerals of the scale. Thedifferent scales, as will be understood, are substituted and used whenit is desired to compute the tonnage resistance in trains of carscoupled with engines of different ratings, as for instance, the machinewith the scale illustrated in Fig. 1 will be used when computing thetonnage resistance in trains, coupled toan engine based on a. twothousand (2000) ton rating. Each scale cooperates with the rows ofperforations 21 and 22 in the operating plate 9 and also with a fixedstop member 3 1, with which the stylus A will engage when the plate 9has been operated a distance to bring the stylus into engagement withsaid stop member 34. Each scale, when in position on the casing, isfixed as well as adjusted relatively to the stop member 3% by means ofthe pin 32 and the perforations 31 in the rings having the scales, sothat to change the machine, to adapt it for use in connection withengines having one, two, or three thousand ton rating or larger ifdesired, the operator has little or no labor and no calculating todo,but all. that is necessary, is to remove a ring 27 and substitutethe-one desired and the machine is ready for operation. Each scale isplanned in accordance with certain predetermined measurements, that whenplaced on a machine and the parts operated in accordance with the planof said scales, the resistances computed for cars of a given weight frompoints opposite corresponding characters, symbols or numerals on thescale,

' will register the resistance represented by the car, rather than theactual gross weight thereof.

The operating plate 9 has been described as in'ovided with the two rowsof perl'orations 21 and 32, having a staggered arrangement, whicharrangement; is made, first, because it. emibles me to manufacture themachine in coln nu-t form aml provide reasom able size perforations sothat a. stylus A having a durable engaging end may he used, and second,the staggered arrangement of the perforations provides for theregistration of half tons, or in other wm'ds, I am enabled to do all thework required in a coiiuntratively small and compact machine, which 1could do if the machine was made very large and cumbersome.

The stop member 34;, to which reference has been made, is preferablysecured to the plate 12, extends inwardly across the face of the gear 20on the plate 9 and is then turned upwardly and inwardly as at 35, seeFig. 5, so that the stop member lies directly beneath the plate 9 and inthe path of the perforations 21 and 22, so that when the stylus A. isprojected through any one of the perforations 21 and 22 and the plate 9moved, the stylus will come into contact with the member 9.

Cooperating with and. adapted to have a ratchet engagement with theteeth of the gear 20 is a. ratchet pawl 30 which is pivotally connectedwith a bracket 37 attached to the plate 12. This pawl, while it allowsthe operating plate 9 having the gear 20 to be moved in the directionindicated by the arrows in Figs. 1 and 4, it will prevent said operatingplate 9 to be operated in a reverse direction, at least, until the pawlhas been released from engagement. with the teeth of the gear 20. Thepawl is held normally engaging the teeth of the gear 20 by means of aspring plate 38 which is attached to an oscillatory arm 89, see Figs. 2,21 and 22. hen it.- is desired to reverse the operation of operatingplate 9, such for instance, when it is desired to return the numberingwheels, to be described, to zero, the operator will, through certainmechanism to be described, oscillate the arm 39 from the position shownin full lines in Fig. 2 to the dotted position shown in said figure, orfrom that position shown in Fig. 21 to that position shown in Fig. whenthe spring plate 38 will operate to withdraw the pawl 36 from engage--ment with the teeth of the gear 20.

As previously suggested, the registering and tallying mechanism as wellas the means by which such mechanism is operated from the operatingplate 9 and the means for returning the registering and tallyingmechanism to zero, from said plate, is located and supported on the baseplate 1. This 1nechamsm is best seen in plan in Fig. 2, 1n elcvation inFig. 3 and the several views designated as Figs. 14 to 17 bothinclusive, al-

though details of such mechanism are seen in other and additional views,of which, reference will be made later.

"[0 denotes a 'lran'ie bent into sni table shape to serve as support formechanism which will he described, and said frame is fastened at; pointsll and 4-2 to the base plate l.

1.3 designates a, sleeve of the frame 41 which serves as a bearing for ashort shaft ll, see F 10, and on the outer end of said shaft is a gear441, which, when the casing and the gear 20 are in position on the baseplate 1, willv mesh with said gear 20 and IQHPOI'Nl to any movementil'nparted to said gear 20. ()n the inner end of the shaft carrying geartd, is a gear 4L5, which is shown to be in mesh. with a gear 10, carriedon a shaft 47, having its opposite ends journaled in the frame 40. Thisshaft is provided with a threaded portion 4-8, for a purpose to befurther explained and on this shaft intermediate the threaded portion 18and the left hand end thereof are carried a plurality ofintencoiiperating nun'ibering wheels 4-9, 50, 51 and 52, the wheel 19being a'l'lixed to the shaft- 17 while the remaining three gears arecarried loose 011 said shaft, but held against rotation in a manner tobe described and subject to the lllOi-GlllQlltof the wheel 49, by meansto be explained. On the left hand end of the shaft 47 is fixed a earwheel 53, movable with the shaft 47 and in mesh with an idler gear 5 1,which in turn is in mesh with a gear 55 aflixed to a shaft 56, alsojournaled in the frame 10. The shaft 56 is shown spaced from and inparallelism with the shaft 17 and carries the two numbering wheels 57and 58, which serve as the car numbering or tallying device. Said wheelsare both carried loose on the shaft 56 and the wheel 5'? is operatedintermittently by a ratchet and paw-l mechanism which I. ill describeand'with each complete revolution of the wheel 57, the wheel 58 is givena partial revolution through interengaging means between the two gears,which will also be further explained.

The numbering wheels 50 and 51 are duplicates of each other, while thewheels 49 and 52 are slightly different. The wheels 50, 51 and 52 areeach provided with the external annular gears 59, whereas the gear 59 onthe wheel 49 is omitted. The wheels 49, 50 and 51 are each provided witha single tooth 60 disposed on that face of said wheels adjoining theadjacent wheels, Whereas the wheel 52 does not have such a tooth,although it is provided with a blind tooth or lug 61, see Fig. 7,serving a purpose which will be explained in connection with the returnof said numbering wheels to Zero. The numbering wheels 57 and 58 so faras their exterior surfaces are concerned, are

in most respects similar to the wheels 49 and 50, as the wheel 58 hasthe external annular gear 62 corresponding to gear 59, although saidwheel lacks the single tooth on the opposite face of said wheel, and thewheel 57 has the single tooth, corresponding to the tooth 60 on wheel49, although the same does not appear on the drawings owing to theposition in which said numbering wheel. is shown.

63 denotes a plurality of gear pinions carried by a shaft 64reciprocally mounted in the frame 40 and said shaft also supports acradle or-frame 65 having the cut-out portions 66 to produce guides 67between which the pinions 68 are carried on the shaft 64, and saidpinions are arranged to be constantly in mesh with the gears 59 of therespective numbering wheels 50, 51 and 52, and are also arranged to havea meshing engagement with the single teeth 60 of wheels 49, 50 and 51with each complete revolution of said wheels 49, 50 and 51.. The cradleor frame 65 is provided with verti cally extended ear portions 68, seeFig. 13, between which is located a pinion 69, similar to the pinionsG3, and said pinion is slidably mounted on a shaft 70 which passesthrough the ear portions 68 and fixed at its opposite ends in a bracket71 and the frame 40, see Fig. 2. The pinion 69 is arranged to beconstantly in mesh with the gear 62 of a wheel 58 and is also arrangedto have a meshing engagement with the single tooth, not shown, on thewheel 57 with each complete revolution of said wheel 57. The pinions 63and 69 are substantially like the pinion, referred to as 63, anddesignated as Fig. 19, wherein is shown a pinion provided with aplurality of full teeth 72 extending across the face of the pinion andalternately disposed teeth 73 which extend only part way across the faceof the pinion.

In the position in which the numbering wheels 49, 50, 51 and 52 areshown in Figs. 2 and 14, when the gear 46 is operated, in the mannerpreviously explained, for operating the tonnage registering wheels toregister train tonnage, the wheel 49 will be rotated with the shaft 47and the smooth peripheral face thereof will ride on alternate full teeth72 of the first pinion 63, and when said wheel 49 has made or iscompleting one full revolution with the shaft 47, the single tooth 60 ofthe wheel 49 will mesh. with the tooth 72 intermediate the teeth 73riding against the face of wheel 49, and said pinion Will be given apartial revolution and in turn impart a partial revolution to the wheel50. The operation of the wheel 51 by the wheel 50, and the wheel 52 bythe wheel 51, is in all respects similar to the operation of the wheel50 by the wheel 49,

as just described, and it is not thought it will be necessary to explainfurther and in detail the successive operations of the several numberingwheels 50, 51 and 52. The shifting of the cradle or frame 65 and with itthe pinions 63 and 69 for the purpose of returning the register and cartallying munbering wheels, to zero, will be explained.

Having described the operation of the registering wheels 49, 50, 51 and52, through the operation of the operating plate 9, I will now proceedto describe the operation of the car tallying wheels 57 and 58, whichare actuated through mechanism operated during the forward movement ofthe plate 9 and engaged by the end of the stylus A, projecting througheither of the perforations 21 and 22 of said plate 9. The wheel 57 hasattached to its outer face, a disk 72 pro vided in its peripheral facewith concave depressions 73, and to the disk 72 is attached a ratchetdisk 74 and on the shaft 56 and extending from the disk 74 to the outerend of said shaft is a sleeve 75, which at its inner end is providedwith an arm 76, and at its outer end is provided with an arm 77. To thearm 76 is pivotally attached a pawl 78 normally held in engagingposition by means of a spring 79, so that as the sleeve is partiallyrotated on the shaft 56, the pawl 78 will be moved to engage a ratchettooth of disk 74, and partially rotate the wheel 57 .on the shaft 56.hen said wheel has made or is completing one complete revolution on theshaft 56, the single tooth thereof will operate in the same manner toimpart movement to the pinion 69 for imparting a partial rotation to thewheel 58, as does the wheel 49 and pinion 63 for imparting motion to thewheel 50, and it is thought that it will not be necessary to go into thedetail of this operation.

The arm 77 extends inwardly a suitable distance, lying beneath the shaft56 and sleeve 75 and has pivotally connected thereto, at 80, a crank-arm8-1 on the lower end of a vertically disposed stem 82, suitablyjournaled on the frame 40, and to the upper end of stem 82 is connecteda lever 83, which normally assumes the position shown in Figs. 1 and 2and has the beveled outer end 84. With the machine assembled, as shownin Fig. 1, the beveled end of the lever 63 lies across and beneath therows of perforations 21 and 22 in the operating plate 9, in such amanner that the beveled edge 84 thereof will be engaged by the end ofthe stylus A, when used for operating the plate 9, which engagement willmove lever 83 in the direction of movement of the plate 9 and oscillatethe stem 82, which will in turn, through the connections between saidstem 82 and the sleeve 75 on shaft 56,

partially rotate said sleeve and operate the wheels 57 and 58 in themanner described. As shown, the lever 83 will be thrown just prior tothe stylus engaging the stop member 34, which limits the movement. ofsaid stylus and plate 9, and the lever 83 being beveled as at Sat allowsthe stylus to gradually release itself or move from engagement with saidlever. With this arrai'igement of operating means for the wheels 57 and539, it will be understood that with each operation of the plate 9, itsmoven'ients will be tallied by the wheels 57 and 58. There can be nomistake so far as the operation of the tallying wheels are concerned,for the reason that the position of the lever 83 is such that no matterwhat tonnage rating a scale is adjusted to, the lever will always be inad vance of the characters, symbols or numerals on said scale, as shownin Fig. 1.

The wheel 57 and cooperative parts on the shaft 50, are held againstdisplacement by a lever 93 pivoted to the bracket 71, see Figs. and 1.2,and on the upper end of the le ver is a roller 94 which is caused tobear against and successively engage the semicircular depressions 73 inthe disk 72 attached to said wheel 57, through the action of a spring95, attached one end to the lever 93, and its opposite end attached tothe bracket 71.

For purposes which I will now explain, I have constructed the lever 83in two parts, as best seen in Fig. 30. The forward sec tion 85 has thebeveled end Set and the inner section. 86 is attached to stem 82, towhich the outer section is pivoted at 87 and the two sections are heldin closed position by a spring 88 connected to lugs 89 and 90 on therespective outer and inner sections of said lever. When the lever isengaged for operating the sleeve 7 5 to transmit motion to the wheels 57and 58, the abutting ends 91 and 92 of the sections will engage tostiflen the lever during the operation of oscillating the same. On theother hand, if an operator when he desires to return the mechanism tozero, should insert the stylus A into any one of the perforations 21 or29. of plate 9 between the lever 83 and stop member 34 and reversing themovement of plate 9, when the stylus engages the lever 83, said leverinstead of bending or breaking, which would be the case, if the leverwas made in one piece, the lever will break, as shown in dotted lines inFig. 1, allowing the stylus to pass by the lever and the spring 88 willreturn the sections to their normal position.

The cradle or frame 65 is provided with the upper transverse plate 96,which overlies the upper edge of frame 40, see Fig. 11, and is alsoprovided with the lower transverse plate 97 which extends across and below the lower edge of said frame 40, see also Fig. 11. Pivotallyconnected at 98 to the front face of the frame is a lever 99 hav ing theextension 100 formed with an offset 101, an extension 102 and anextension 103 formed with the right angle engaging portion 104. There isa second lever 105 pivoted at 100 to the front face of the frame it) andthis lever has the extension 107 normally lying below and injuxtaposition to the extension 103 of lever 99, and a further extension108. To the lower end of extension 102 of the lever 99 is connected aspring 109 which has its opposite end eoi'mected '5) the plate 97 of thecradle, see Fig. 11. As will be seen from an examination of Fig. 11, theextension 100 of lever 99 normally overlies the plate 90 with theoff-set l01'thereof engaging the left. hand edge of said plate 90 whichwill hold the cradle or frame 40 projected to the right, looking at Fig.11, which will retain the pinions 63 and 09 in operative relation withthe plurality of numbering Wheels of the tonnage registering and cartallying mechanism. When it is desired to shift or move the cradle orframe to the left, which will carry with it the shaft 01: and thepinions 03 and 09 for the purpose of moving said pinions from the pathof the single teeth (30 of the several numbering wheels, with which saidpinions will mesh, in the manner previously described, the op eratorwill insert the end of the stylus A through a perforation 110 in thecenter plate 8, which is above the engaging portion 104 of lever 99 andpressing down on the stylus will move the lever 99 from that positionshown in full lines in Fig. 11 to the position shown in dotted lines insaid figure, raising the extension 100 and releasing the offset 101thereof from the plate 96 of the cradle or frame 65, at the same timethe extension 103 of lever 99 will be caused to bear downwardly on theextension 107 of lever 105, moving said lever from the position shown infull lines in Fig. 11 to the position shown in dotted lines in saidfigure, causing the extension 108 of the lever 105 to bear against andmove the plate 97 of the cradle or frame 65 and with it the cradle orframe, the shaft 64 and the pinions 63 and 69, in which position thenumbering wheels which cooperate with the pinions may be returned tozero, providing the lever 39, which controls the position of the pawl86, Fig. 21, is released from the teeth of the gear 20 that theoperating plate 9 having the gear 20 may be reversed, so I connect theinner end of the lever 39, see Fig. 2, to the inner end of shaft 64, sothat when said shaft is shifted with the cradle 65, it will move thelever 39 from the position shown in full lines in Fig. 2, to theposition shown in dotted lines in said figure, when the pawl 36 will bereleased from the teeth of gear 20 and so retained until the cradle 65and shaft 64 have been returned to their normal position, which will,through theconnectionof shaft 64, return the lever 39 to'its normalposition and cause the pawl 36-t0 again move into mesh with teeth ofgear 20.

hen the cradle or frame 65 has been shifted to the left, as just aboveexplained, it together with the mechanism carried thereon, must belocked until after the operator, through a reverse operation of theplate 9, has returned the numbering wheels to zero, when the parts shallbe automatically returned to the position shown in full lines in Fig.11. This lock takes the form of a lever 111, pivoted at112 to the baseplate 1, and the operating end of said lever is carried under andadjacent to the right hand end of the cradle or frame 65, looking atFigs. 2, G, 11, 14 and 15 and is provided with the vertical projectionsor lugs 113 and 114, the latter having connected thereto a spring 115which is suitably connected at its opposite end to the base 1,preferably to a plate 116 secured to said base and said spring acts todraw the inner free end of lever 111 toward the plate 116, for purposeswhich 1 will now explain. Prior to the shifting of the cradle or frame65 to the left, looking at Figs. 6 and 11, the projection 113 lies onthe outside of the cradle or frame 65, but immediately upon the cradlebeing shifted to the left, the spring 115 will draw the lever 111, sothat the projection 113 will move across and in front of the right handend of the cradle or frame 65 so as to en gage the same and lock thecradle in its shifted position. This lever 111 is not released until allthe numbering wheels assume their normal or initial positions, which isat zero, and is accomplished as follows: 117 denotes a plate, see Figs.2, 8, 14, 15 and 16, which is hinged at 118 to a plate 119 se cured tothe base 1, and said plate 117 is adapted to have engagement with thethreaded portion 48 of the shaft 47 and be moved back and forth by thethreaded portion 48 of said shaft. The upper edge of the plate 117 isheld in the position shown in Figs. 14, 15 and 16 by a spring engagingarm 119 of theplate 116 and just as soon as the shaft 47 is operated ina reverse direction, the threaded portion 48 of said shaft will operateto move or draw the upper edge of plate 117 toward the numbering wheel49, aided by the spring engaging arm 119 the object of which is to movethe pivoted bar 120 carried on the plate 117, see Fig. 8, and having theright angle bent portion 121, into a position, so that when thenumbering wheels are returned to zero, a pin 122 projecting from thewheel 49, will engage the upper end of bar 120, oscillate it on itspivot and raise or throw the bent portion 121 of the bar 120 outwardly,causing it to engage and bear against the projection or lug 114 of thelever 111 and throw said lever outwardly, releasing the cradle or frame40 and it will be shifted to its normal position through the action ofspring 109. As previously explained, this spring 109 was described asconnected to lever 99 and the cradle 65 and when the lever 99 wasdepressed, to move the lower end 102 in one direction and operating tomove the lower end of lever 105 in an opposite direction, which willextend said spring; but immediately upon the release of the cradle, asexplained, the spring 109 tightens up, throwing the lever 99 to itsnormal position and also returning the cradle to its normal position.Upon the registering devices being further operated for the purpose ofcomputing tonnage resistance of trains,the plate 117 is returned to theposition shown in Figs. 14, 15 and 16, and. held in position by thespring engaging arm 119, to be again taken up by the threaded portion 48of shaft 47 and moved toward the numbering wheels, when the plate 9 andparts cooperating therewith are reversed.

I will now explain the general construction of the numbering wheels 49,50, 51 and 52 and their interengaging mechanism, by which, on a reversalof the operation of the wheels 49, said wheels are collected and.returned to zero. In Fig. 18 is shown a sectional detail in perspectiveof the wheels designated as 50 and 51, the remaining numbering wheelsare correspondingly similar, although parts are omitted, which as willbe understood, are unnecessary to the perfect operation of the machine.These wheels 50 and 51 are constructed of a plurality of sections, forconvenience in manufacturing and assembling, comprising the part 122containing the characters, symbols or numerals on the periphery thereof,the gear 59 and the part 123 having the single tooth 60, all of whichare united by the plurality of securing pins 124. The gear 59 and part122 have the enlarged hub portions 125, which, when the wheels are onthe shaft 47, leave space between the exterior face of the shaft andinterior face of the gear 59 and part 122. In this hub portion iscarried a ring 126 and a coil spring 127, both of which will encirclethe shaft, the outer face of ring 126 bearing against a shoulder 128 ofthe gear and the spring bearing against the ring on one side and ashoulder 129 011 the other side. The ring is shown provided with a pawl130 having a beveled end which projects through an opening 131 in theshoulder of gear 59, and said pawl projects into an annular opening 132formed in the part 123 of the adjacent wheel, and said part 123 of eachwheel, formed with such part is pro vided with the radially arrangedtapered dog 133 adapted to cooperate with the pawl 130 of the adjacentwheel. in a manner which I will now explain. hen the wheel 4 9 iscompleting a forward revolution, the tapered portion of the dog 1.323hereof will engage with the beveled end of the pawl 1.30 in wheel 50,'lorcii'ig the ring 120 back into the wheel, allowing the (log to passthe pawl during the further rotation of said wheel 19; the tooth (3Ocoihperating with pinions 63, in manner previously stated imparts thepartial rotation to the wheel 50. This operation is continued throughthe rotation of the several wheels 50, 51 and 52, and each time a (log133 PHSHUS a pawl 130, the spring 127 will ilnn'uediatiely 'l'orce ring126 with its pawl 130 outvwn-dly.

hen the mechanism, which has been do scribed for returi'iing the wheelsto zero, has been set, the operation. will be as follows: As the wheel4-9 during its reverse operation is com pletiug a revolution, the dog 1.53 thereof will engage the [lat face of the pawl 130 in the wheel 50,and cause said wheel, through the engagement of (log and pawl. to betaken up by the wheel 49 and rotated until the dog 133 of wheel 50 makesa similar engagement with the pawl 130 on the wheel 51, when the wheel.51 will be taken up and caused to travel or returned in unison with thewheels 49 and 50 and when the wheel 51 assumes a position where its dog133eomes into similar engagement with the pawl 130 of wheel 52. all ofsaid wheels will move in unison and be finally returned to zero, atwhich time the pin 122 on wheel 49, will engage the bar 120, in mannerdescribed for releasing the cradle or frame 65 so that the parts may bereturned to their normal or initial position. The interior constructionof the wheels 57 and 58 are similar to the wheel shown in F 18, so faras it is necessary to employ the parts, shown in detail, in said figure,in said wheel, so that the wheel 57' may operate to transmit movement tothe wheel 58 when the wheels are to be returned to zero, and it is notthought necessary to go into detail, so far as it pertains to thisstructtu'e.

The shaft 56 adjacent to the outer face of the ratchet disk 71, isprovided with an annular shoulder 134 formed with a lug 135, see Fig.17, and said lug 133 seen on the wheel in Fig. 18, and it coacts withthe pawl 130 of the ring 126 in wheel 57, in the same manner as the dog133 of one of the previously described wheels, coacts with the pawl 126of an adjacent wheel. It will be understood that any motion imparted toshaft 47 is in turn in'lparted to the shaft 56 through the train ofgears 53, 54 and 55, previously described, so that when the shaft 47 isoperated in a reverse direction, a reverse movement will be imparted tothe shaft 56 through said gears 53, 54 and 55 and that when the lug 135of the shoulder 134 on shaft 56 engages the flat face of the pawl 130 ofthe wheel 57, said wheel will be returned to zero, and likewise when thedog 133, not shown, engages with its coacting pawl 180 in the wheel 58,said Wheel will be t'athered a1) and returned to zero. The engaging dogs133 and pawls 126 of the several 1lt.l1lll')0l'll1g wheels are sodisposed on their respective 'wl'ieels, relatively to each other, thatwhen the dog 133 of one wheel engages the pawl of an adjacent wheel, corresponding numerals on the adjacent wheels gather into alinement.

As the numbering wheels are all gathered to zero, they are locked, orrather mechanism is provided for preventing further reverse movementthereof, and such mechanism is so timed relatively to other cooperatinll'lO-(Zllllllfilll, that the wheel locking mechanisn'i act-ssimultaneously with the release of the lever 111 and return of thecradle or frame 65 to its normal position. This wheel locking mechanismcomprises a horizontally disposed lever 185, see Figs. 6 and 8, and saidlever is pivoted at 137 to the bracket 71. The forward end of lever 136is bent upwardly as at 138 and then to one side as at 139, providing anextension which is arranged to be engaged by the lever 17 as said leveris operated during a reverse operation of the shaft 47, and when soengaged will oscillate the lever 186.

The lever 136 at its opposite end has connected thereto, a reach bar 140which is in turn connected to a plate 141, having the horizontallydisposed arm 142 extending toward the numbering wheel 52, and theoppositely extending arm 143, which moves in proximity to the wheel 58.To guide the plate 141 in its movement with the reach bar 140 as it isshifted with the lever 136, I pass the shaft 7 0 carrying the pinion 69through perforations 144 and 145 in the respective arms 142 and 143 ofplate 141, in such a manner that plate 141 may slide on the shaft and beguided thereby. I also provide the guiding stud 141 projecting inwardlyfrom the frame which operates in an opening 142 provided in the arm 142,which assists in guiding the plate 141 in its movement and prevents anyoscillation thereof on the shaft 70. As the lever 117 is moved towardwheel 49 by the threads 48 on shaft 47, assisted by spring engaging arm,said lever 117 will engage and gradually move the lever 116, and it inturn will move the reach bar 140 and plate 141, bringing the arms 142and 143 adjacent to the outside faces of wheels 52 and 58, so that whenthe several numbering wheels 49, 50, 51, 52, 57 and 58 are brought orgathered to zero, the blind tooth or lug 61 of wheel 52 will ongage andlocli: against the end of arm 142. In like manner, a blind tooth or lug146 on the wheel 58, see Fig. 7, will engage and lock against the arm143. To the reach bar 140 is attached a spring 147 which is connected atits opposite end to the frame 40 and this spring is expanded by theaction of lever 117 against the lever 136 when moving the plate 141 toengaging position with the lugs 61 and 1&6 of the numbering wheels 52and 58, but as the lever is returned to its normal position, aspreviously explained,said spring 147 will operate to move the plate 1l1so that its arms 1 12 and 143 are out of the path of the lugs 61 and146, leaving the wheels free to turn. Engaging the pinions 63 and 69,see Fig. 13, are retarding springs 14-8 and 1.49 suitably supported andarranged to hold the pinions to their work and prevent either thepinions or gears meshing therewith, from running loose when. the gearsare being reversed, which would destroy the eflicie-ncy of the machine.

I provide an alarm hell 150, suitably supported on the base 1 which maybe sounded when one, two or three thousand tons have been registered bythe registering wheels, or even more if desired, and said alarm is alsoarranged to be sounded when the tallying wheels indicate that fifty,sixty, or seventy cars, or even more, have been placed in a train. Itwill be found in practice that on some divisions, a car limit will bereached before the tonnage allowed the engine is reached, owing tovarious conditions which will limit a train to a given number of cars,and to accommodate the machine to these varying conditions, I not onlyprovide for sounding the alarm when the required tonnage is computed bythe tonnage registering wheels, but also provide for announcing that thetrain limit has been reached.

The clapper for the alarm bell is designated. as 151 and is connected atits inner end to a frame 152,- see Fig. 8 and the frame 152 is pivotedto frame 10 at 153 and has the inwardly carried projection 154:extending across the upper edge of frame 40, see Fig. 2, with its innerend in proximity to the outside face of wheel 52, to which is attached aplate 155 provided with spring engaging fingers 156, 157 and 158, seeFig. 7, which are so arranged on the wheel 52 that when one, two orthree thousand tons have been registered by the tonnage registeringwheels, the frame 152 will be oscillated by the engagement of saidfingers with the projection 154 of frame 152, raising the clapper 151.Immediately upon the fingers 156, or 157, or 158 releasing the frame152, it is returned by a spring 159, connected to the frame 152 and thebase 1, causing the clapper to drop and engage the alarm bell 150.

160 is a plate similar to plate 152, the same being pivoted at 161 toframe 40 and is provided with the projection 162 extending across theupper edge of frame 40, see Fig. 2, with its inner end in proximity tothe outside face of wheel 58, to which is attached a plate 163 providedwith spring engaging fingers 164:, 165 and 166, see Fig. 7, which are soarranged on the wheel 58 that when fifty, sixty or seventy cars havebeen placed in a train, the frame 160 will be oscillated by theengagement of said fingers with the projection 1.62 of frame 160.Motion. is imparted to frame 152 to raise the clapper, through a reachbar 167, see'Fig. 3, pivotally attached at 168 and 169 to the respectiveframes 152 and 160.

In Fig. 28 is shown in plan a scale ring 27 provided with a scale 27said scale ring and scale corresponding in some respects to the scalerings and scales previously described. That is to say, it is intendedfor use in connection with a machine having the operating plate 9 andother component parts, and when in operative position, encircles therows of perforations 21 and 22 in the plate 9. Itis provided withlocking lugs or plates 26 attached to its lower face, which said lugs orplates cooperate and have a locking engagement with the lugs 25 inmanner similar to the lugs 26, previously described, except that thelugs extend a greater distance around the scale ring 27 than do those,described as 26, for the reason that the ring 27, as I will explain, isrotatably adjustable on the machine, and the long lugs or plates 26prevents the ring from becoming dislodged during such adjustment. Thescale 27 differs from the scales on the rings previously described, inthat scale 27 is not graduated nor is it contracted at any pointthroughout its length, but the characters, symbols or numerals andradial lines thereof are placed equidistant from each other so that anarbitrary allowance may be made for each successive car placed in atrain when making up such trains. To accomplish this, I serrate or notchthe edge of the ring 27* as at 27 for a suitable distance and providethe ring with a chart 27 eX- tending alongside of its serrated edge,which said chart consists of characters, symbols or numerals ofpredetermined denominations which serve as a guide to an operator inadjusting the ring to make the proper allowance to the cars placed inthe train. The ring is adjustably held on the casing by a slidable lug27 having an engaging end 27 adapted to enter the serrations 27 of thering, as shown in Fig. 28. In the position in which the ring is shown inFig. 28, it has been adjusted to place the numeral 12 on chart 27opposite the engaging end of lug 27* which is to indicate that anarbitrary allowance of twelve (12) tons will be made to each ear, witheach operation of the plate 9 from any point opposite the scale 27*. Inother words, if the plate 9 is operated from a point opposite thenumeral 4O on the scale 27", the registering mechanism instead ofregistering 10 tons, will register fifty two (52) tons. The plurality ofregistering wheels when the casing is secured in position on the base,are disposed below sight openings 170 in the center plate 8, and the cartallying wheels are located beneath sight openings 171, also arranged insaid center plate 8, so that the said wheels may be viewed by the ')p(-,1;-ator during the operation of the machine.

Having thus fully described my invention, what I claim and desire tosecure by Letters Patent of the United States, is

1. In a computing i'nachine, a scale ring containing a scale, aplurality of spaced inen'ibers secured to the lower face of said ring,and means with which said members may coincide for locking the ring inposition on said machine.

2. I11 a computing machine, a scale ring containing a scale, a pluralityof lugs attached to the lower face of said ring, and lugs on the machineframe with which the lugs on the ring may have a sliding engagement forlocking the ring in position 011 said machine.

3. In a computing machine, a scale ring containing a scale, and providedwith a per foration, and a yielding member arranged to enter theperforation in said ring for retaining said ring in operative positionon the machine frame.

4. In a computing machine, a scale ring containing a scale, and providedwith a perforation, locking lugs on the machine frame, locking lugsonthe ring arranged to have a sliding engagement with the lugs on themachine frame, and a yielding member arranged to enter the perforationin the ring when the lugs of frame and ring coincide.

5. In a computing machine, the combina tion of registering devices, arevoluble member for operating said devices, a scale ring having a scalearranged to cooperate with said member, and having a perforation, andyielding means on the machine frame adapted to enter said perforation inthe ring for retaining said ring in operative position on the machineframe.

6. I11 a computing machine, the combination of registering devices, arevoluble plate for operating such devices, said plate having aplurality of rows of perforations in staggered arrangement, and a scalering adapted to encircle said plate and having a scale cooperatingtherewith and serving as a guide to the operation of said plate.

In a computin machine, the combination of registering evices, arevo-luble plate for operatin such. devices, said plate having aplurality of rows of perforations in staggered arrangement, a scale ringadapted to encircle sa1d plate and having a scale cooperating therewithand serving as a guide to the operation of said plate, and means fordetachably securing the ring to the machine frame.

8. In a computing machine, the combina tion of registering devices, arevolublc plate for operating such devices, said plate having aplurality of rows of perforations in staggered arrangement, a scale ringadapted to encircle said plate and having a scale cooperating tlmrewithand serving as a guide to the operation of said plate, lugs on themacl'iine fran'ie, and lugs on the ring arranged to have a slidingengagement with the lugs on the machine for securing the ring to theframe.

9. In a computing machine, the combina tion of registering devices, arevoluble plate geared to said devices, said plate having a plurality ofannular rows of perforations in staggered arrangement, for the insertionof a stylus for operating the plate, a stop memher with which the stylusWill engage, a scale ring and scale thereon, and means for securing saidring in position encircling said plate.

10. In a computing machine, the combination of registering devices, arevoluble plate geared to said devices, said plate having a plurality ofannular rows of perforations in staggered arrangement, for the insertionof a stylus for operating the plate, a stop member With which the styluswill engage, a scale ring and a scale thereon, said ring having aperforation therein, and means on the machine frame adapted to enter theperforation for retaining said ring in operative position on said frame.

11. In a computing machine, the combination of registering devices, arevoluble plate geared to said devices, said plate having a plurality ofannular rows of perforations in staggered arrangement, for the insertionof a stylus for operating the plate, a stop memher with which the styluswill engage, a scale ring and scale thereon and a perforation in saidring, locking lugs on the machine frame, locking lugs on the ringadapted to have a slidable rotation with the lugs on the frame, and ayielding member adapted to enter the perforation in the ring forretaining the ring in operative position on said frame.

12. In a computing machine, the combination of suitable registeringdevices, a revoluble member for operatin said devices, a plurality ofinterchangeabIe rings adapted to have a. detachable connection with themachine frame, each ring provided With a scale based on a differenttonnage rating, and also having a perforation at a suitable pointtherein, and a yieldable member ar ranged to enter the perforation inany one of said plates, and thereby retain the rings in operativeposition on the frame.

13. In a computing machine, the combination of suitable registeringdevices, a revoluble plate for operating said devices and provided withperforations for the insertion of a stylus, a stop member with. whichthe stylus will engage, a plurality of interchangeable scale ringsadapted to have a detachable connection with the machine frame, eachring having a scale based on a different tonnage rating and serving as aguide to the operation of the plate, said rings also provided with aperforation therein, a common means on the frame adapted to enter theperforation in any one of said rings for retaining said rings inoperative position on the frame, and means for locking said rings downto the machine frame.

14. In a machine for computing the tonnage resistance in trains of cars,the combination wit-h suitable registering devices and means foroperating the same, of a scale member and a scale thereon, a stop memberfor limiting the movement of the register operating means, a chart alsoarranged on said ring, and meansfor adjusting the ring and its chartrelatively to the stop member, whereby an arbitrary allowance per carplaced in a train may be made.

15. In a machine for computing the tonnage resistance in trains of cars,the combination with suitable registering devices, a plate geared tosaid devices and provided with perforations for the insertion of astylus, a stop member for limiting the movement of the plate, a scalemember cooperating with the plate and provided with a scale serving as aguide to the operation of said plate by means of the stylus, a chartalso arranged on said scale member, and means for adjusting the scalemember and its chart relatively to the stop member, whereby an increasedor decreased arbitrary allowance per car placed in a train may be made.

16. I11 a computing machine, a register operating plate, means forlocking the plate against rotation in one direction, and means forreleasing said plate locking means.

17. In a computing machine, registering devices, an operating plate, agear on said plate, gearing connecting said gear with the registeringdevices, means in operative engagement with the gear on the plate forlocking the plate against rotation in one direction, and means forreleasing said plate locking means.

18. In a computing machine, registering devices, an operating plate, agear on said plate, means operated by the gear for transmitting movementto the registering devices, a pawl in engagement with said gear forlocking the plate against rotation in one direction, means for holdingthe pawl against the gear, and means for moving the pawl holding meansto release the pawl from said gear.

19. In a computin machine, registering devices, a revoluble plate foroperating said devices, said plate having a plurality of perforationsfor the insertion of a stylus, means for locking the plate againstrotation in one direction, and means adapted to be operated by thestylus for releasing said plate locking means.

20. In a computing machine, registering devices, a revolnble plate foroperating said devices, said plate provided with a plurality ofperforations for the insertion of a stylus, devices for tallying themovements of the plate, a lever for operating said tallying devices, thelever arranged to be engaged and operated by the stylus with eachoperation of the plate, said lever so constructed that with each forwardoperation of the plate, the lever will be operated and transmit motionto the tallying devices, and capable of being moved out of the path ofthe stylus with each reverse operation of the plate without transmittingmot-ion to the tallying devices.

21. In a computing machine, the combination of a plurality ofregistering wheels, inter-cooperating means between said wheels, meansfor operating the wheels, an alarm bell, a clapper, and means foroperating the same, and a plurality of engaging fingers on one of saidwheels adapted to engage and operate said clapper operating means whensaid registering wheels have been operated to register certainpredetermined amounts.

22. In a computing machine, the combination of a plurality ofcooperating registering wheels, means for operating sald wheels in onedirection to register, means for locking the registering wheels againstrotation in one direction, means for releasing'said wheel locking meansto allow said wheels to be returned to zero, and a stop to limit themovement of the wheels when said wheels are returned to zero.

23. In a computing machine, a shaft, a plurality of wheels carried onsaid shaft, one of said wheels secured to said shaft, an annular ringcarried in the hub of the wheel loose on the shaft and provided with apawl projecting from without the hub of said wheel, a spring in said huband engaging said ring, a dog on the Wheel fixed to the shaft andadapted to ride past the pawl of the loosely carried wheel when rotatedin one direction, and adapted to engage the pawl of said loosely carriedwheel for rotating said loosely carried wheel, when rotated in reversedirection.

24. In a computing machine, the combination of a plurality ofregistering wheels, means for operating said wheels, a sliding frame,pinions carried by said frame and co operating with said registeringwheels for transmitting motion between adjacent wheels, means forshiftin said sliding frame and pinions, a lever or automatically lockingsaid frame after it has been moved, and means operated by one of saidregistering wheels during the operation of returning the

